Not receiving or sending email

I just installed zimbra beta 2 OSS on SLES10 and now no email is being received or sent (from an email client or the webui). I am able to login as a user and as the admin using the webui. Is this something with beta2 or something not set right?
Beta1 was working before i moved /opt to a new array and installed beta2.

I noticed in another thread you mention that the new location for /opt is on resierfs, is that correct? We do not recommend using reiserfs for the Zimbra file system, I would recommend that you change it as soon as you can.

Why would i change it from reiserfs? What are any pro's for changing it. It worked fine in beta1. Why is it not reccommended to have zimbra on reiserfs?

It's not suitable for an enterprise file system (IIRC, there's some comments in the forums). I have seen corruption problems with it in some circumstances (usually power-failure) - we recommend ext3. If you continue using reiserfs, just make sure you backup fully and often.

Wel,, back to the original problem: mails seem to be moving both ways now I don't know why it took like 2 hrs but they seem to work now.
On the reiserfs front: what would it take to move from reiserfs to ext3? I really don't want to have to start over and neither do the users

The most simple method is to backup your /opt/zimbra directory, wipe out your current filesystem and replace it with ext3, install a new copy (the same release in the new /opt directory ) of Zimbra, restore the /opt/zimbra directory over the recently installed one and reinstall zimbra again. Slightly long winded but it works fine.

Use the following rsync command to copy and restore and keep the corret file permissions: